Controller Cards: Controller cards allow you to add additional functionality to your computer. We carry a complete assortment of controllers that let you add Bluetooth to your PC, add FireWire to a computer that doesn't have it, add additional USB 2.0 ports to your computer, or add parallel, serial, or iRDA capabilities to your system. We also carry a full lineup of IDE controllers and SATA controllers that let you add additional drive ports & RAID capabilities to your system. We've added compact flash adapters that you can use to make CF SSD drives.